JPS54108525A - Index-signal processor of beam index type picture receiver - Google Patents
Index-signal processor of beam index type picture receiverInfo
- Publication number
- JPS54108525A JPS54108525A JP1560578A JP1560578A JPS54108525A JP S54108525 A JPS54108525 A JP S54108525A JP 1560578 A JP1560578 A JP 1560578A JP 1560578 A JP1560578 A JP 1560578A JP S54108525 A JPS54108525 A JP S54108525A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- index
- phase
- loop
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Abstract
PURPOSE: To make excellent color reproduction possible by attaining effective phase compensation with a delay time shortened, by using a phase-locked loop and by providing a phase compensator circuit into the loop.
CONSTITUTION: Phase-locked loop 37 is used to obtain frequency 2)fI) twice as high as index frequency (fI) easily and then, phase compensator circuit 42 is provided into loop 37 to attain extremely-simple phase compensation. In assition, the index signal processor consists of index type picture tube 31, index signal detector 34, frequency selector 35, amplitude limiter circuit 36, sampling circuit 44, reset pulse generating circuit 45, 1/3-divider circuit 43, gate circuits 46 to 48, etc. As a result, a signal of 2(fI) from loop 37 is inputted to circuit 43 and a reset signal, on the other hand, is applied to circuit 43 at every time of starting a unidirectional scan to generate a gate signal; and then, circuits 46 to 48 turn on to input primary- color signals of R, G and B to picture tube 31, so that color reproduction will be done.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1560578A JPS588196B2 (en) | 1978-02-14 | 1978-02-14 | Index signal processing device for beam index type receiver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1560578A JPS588196B2 (en) | 1978-02-14 | 1978-02-14 | Index signal processing device for beam index type receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54108525A true JPS54108525A (en) | 1979-08-25 |
JPS588196B2 JPS588196B2 (en) | 1983-02-15 |
Family
ID=11893346
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1560578A Expired JPS588196B2 (en) | 1978-02-14 | 1978-02-14 | Index signal processing device for beam index type receiver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS588196B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH038381U (en) * | 1989-06-13 | 1991-01-25 |
-
1978
- 1978-02-14 JP JP1560578A patent/JPS588196B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS588196B2 (en) | 1983-02-15 |
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